Lakoff and Johnson on Narayanan (1999)

Here's how George Lakoff and Mark Johnson sum up Narayanan's toy model of English verbal aspect in their 1999 book Philosophy in the Flesh:

Narayanan devised an ingenious way to test whether his model of general high-level motor control could handle purely abstract inferences, inferences having nothing to do with bodily movement. He constructed a neural model of conceptual metaphor and then found cases in which body-based metaphors were used in an abstract domain, in this case, international economics. [...] Narayanan then showed that models of the motor schemas for physical action can---under metaphoric projection---perform the appropriate abstract inferences about international economics. (p. 42)

They conclude:

Aspectual concepts that characterize the structure of events can be adequately represented in terms of general motor-control schemas, and abstract reasoning can be carried out using neural motor-control simulation. (p. 42)